Home / 27,088.81-37,385.71-15,758.78

Finding the Fourth Proportional to 27,088.81, 37,385.71 and 15,758.78

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Solution

The fourth proportional to 27,088.81, 37,385.71 and 15,758.78 is: 21,748.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,088.81 : 37,385.71 = 15,758.78 : x
  2. Step 2: Convert to fraction form
    27,088.81/37,385.71 = 15,758.78/x
  3. Step 3: Cross multiply
    27,088.81x = 37,385.71 × 15,758.78
  4. Step 4: Simplify right side
    27,088.81x = 589,153,179.03
  5. Step 5: Solve for x
    x = 589,153,179.03/27,088.81
  6. Step 6: Final answer
    x = 21,748.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.